Search: id:A127557
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%I A127557
%S A127557 5,0,1,8,8,6,5,6,5,7,3,7,7,3,7,8,2,3,3,7,1,4,1,5,6,2,8,3,1,8,1,1,3,6,8,
%T A127557 6,8,1,3,3,8,9,4,1,7,7,1,4,7,9,8,0,0,5,7,1,0,3,8,2,7,6,1,9,8,0,4,1,2,6,
%U A127557 4,7,8,3,6,2,0,2,4,8,2,0,2,4,6,5,5,7,9,5,9,7,7,9,6,2,0,7,6,0
%N A127557 Decimal expansion of the number 5.018865657377378233714156283... having 
               continued fraction expansion 5, 53, 157, 173, 211, 257, 263, 373, 
               563, ... (balanced primes order one A006562).
%t A127557 a = {}; Do[If[PrimeQ[((Prime[n + 2] + Prime[n + 1])/2 + (Prime[n + 1] 
               + Prime[n])/2)/2], AppendTo[a, ((Prime[n + 2] + Prime[n + 1])/2 + 
               (Prime[n + 1] + Prime[n])/2)/2]], {n, 1, 1000}]; RealDigits[N[FromContinuedFraction[a], 
               100]][[1]]
%Y A127557 Cf. A064442, A127549, A127550, A127551, A127552, A127553, A127555, A127556, 
               A127557, A127558, A127559, A006562.
%Y A127557 Sequence in context: A083861 A097591 A164652 this_sequence A060524 A133843 
               A064315
%Y A127557 Adjacent sequences: A127554 A127555 A127556 this_sequence A127558 A127559 
               A127560
%K A127557 cons,nonn
%O A127557 1,1
%A A127557 Artur Jasinski (grafix(AT)csl.pl), Jan 18 2007

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